Adding .gitignore file.
Adding .gitignore file.

cedriclaunay/gaffer,GafferHQ/gaffer,chippey/gaffer,paulondc/gaffer,andrewkaufman/gaffer,ivanimanishi/gaffer,hradec/gaffer,lucienfostier/gaffer,boberfly/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,davidsminor/gaffer,hradec/gaffer,hradec/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,paulondc/gaffer,chippey/gaffer,davidsminor/gaffer,hradec/gaffer,paulondc/gaffer,goddardl/gaffer,davidsminor/gaffer,goddardl/gaffer,cedriclaunay/gaffer,andrewkaufman/gaffer,davidsminor/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,boberfly/gaffer,johnhaddon/gaffer,chippey/gaffer,johnhaddon/gaffer,paulondc/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,goddardl/gaffer,lucienfostier/gaffer,appleseedhq/gaffer,boberfly/gaffer,goddardl/gaffer,GafferHQ/gaffer,cedriclaunay/gaffer,lucienfostier/gaffer,ivanimanishi/gaffer,cedriclaunay/gaffer,ImageEngine/gaffer,boberfly/gaffer,ivanimanishi/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,chippey/gaffer,appleseedhq/gaffer,hradec/gaffer